//
//  UIButton + extension.swift
//  SinaWeibo25
//
//  Created by apple on 16/3/12.
//  Copyright © 2016年 itcast. All rights reserved.
//

import UIKit

extension UIButton {
    class func buttonWithImage(imageName: String, backImageName: String)-> UIButton {
        let btn = UIButton()
        btn.setBackgroundImage(UIImage(named: backImageName), forState: .Normal)
        btn.setBackgroundImage(UIImage(named: backImageName + "_highlighted"), forState: .Highlighted)
        btn.setImage(UIImage(named: imageName), forState: .Normal)
        btn.setImage(UIImage(named: imageName + "_highlighted"), forState: .Highlighted)
        //自适应大小
        btn.sizeToFit()
        return btn
    }
    
    class func buttonWithtitle(title: String, backImageName: String?, textColor: UIColor, fontsize: CGFloat, imageName: String? = nil)-> UIButton {
        let btn = UIButton()
        //这是背景图片
        if backImageName != nil {
            btn.setBackgroundImage(UIImage(named:backImageName!), forState: .Normal)
        }
        
        if imageName != nil {
            btn.setImage(UIImage(named: imageName!), forState: .Normal)
        }
        btn.setTitle(title, forState: .Normal)
        btn.setTitleColor(textColor, forState: .Normal)
        btn.titleLabel?.font = UIFont.systemFontOfSize(fontsize)
        btn.sizeToFit()
        return btn
    }
}
